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-rw-r--r--src/delete.c4
-rw-r--r--src/main.c6
-rw-r--r--src/sqlite.h.in6
-rw-r--r--src/sqliteInt.h16
-rw-r--r--src/test8.c6
-rw-r--r--src/test_tclvar.c7
-rw-r--r--src/vtab.c62
7 files changed, 67 insertions, 40 deletions
diff --git a/src/delete.c b/src/delete.c
index 37b8577d8..f1cdcdb9a 100644
--- a/src/delete.c
+++ b/src/delete.c
@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** in order to generate code for DELETE FROM statements.
**
-** $Id: delete.c,v 1.124 2006/06/14 19:00:21 drh Exp $
+** $Id: delete.c,v 1.125 2006/06/15 04:28:13 danielk1977 Exp $
*/
#include "sqliteInt.h"
@@ -45,7 +45,7 @@ int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
if( (pTab->readOnly && (pParse->db->flags & SQLITE_WriteSchema)==0
&& pParse->nested==0)
#ifndef SQLITE_OMIT_VIRTUALTABLE
- || (pTab->pModule && pTab->pModule->xUpdate==0)
+ || (pTab->pMod && pTab->pMod->pModule->xUpdate==0)
#endif
){
sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
diff --git a/src/main.c b/src/main.c
index 526eaed6a..463ba997a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
-** $Id: main.c,v 1.343 2006/06/14 15:35:37 drh Exp $
+** $Id: main.c,v 1.344 2006/06/15 04:28:13 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -160,6 +160,10 @@ int sqlite3_close(sqlite3 *db){
}
sqlite3HashClear(&db->aCollSeq);
#ifndef SQLITE_OMIT_VIRTUALTABLE
+ for(i=sqliteHashFirst(&db->aModule); i; i=sqliteHashNext(i)){
+ Module *pMod = (Module *)sqliteHashData(i);
+ sqliteFree(pMod);
+ }
sqlite3HashClear(&db->aModule);
#endif
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index 2f8f1443c..68f3a568b 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -12,7 +12,7 @@
** This header file defines the interface that the SQLite library
** presents to client programs.
**
-** @(#) $Id: sqlite.h.in,v 1.176 2006/06/14 13:03:23 danielk1977 Exp $
+** @(#) $Id: sqlite.h.in,v 1.177 2006/06/15 04:28:13 danielk1977 Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
@@ -1536,7 +1536,6 @@ typedef struct sqlite3_module sqlite3_module;
struct sqlite3_module {
int iVersion;
const char *zName;
- void *pAux;
int (*xCreate)(sqlite3*, void *pAux,
int argc, char **argv,
sqlite3_vtab **ppVTab);
@@ -1649,7 +1648,8 @@ struct sqlite3_index_info {
int sqlite3_create_module(
sqlite3 *db, /* SQLite connection to register module with */
const char *zName, /* Name of the module */
- const sqlite3_module * /* Methods for the module */
+ const sqlite3_module *, /* Methods for the module */
+ void * /* Client data for xCreate/xConnect */
);
/*
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index fcc147adf..f51ead317 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
-** @(#) $Id: sqliteInt.h,v 1.505 2006/06/14 19:00:21 drh Exp $
+** @(#) $Id: sqliteInt.h,v 1.506 2006/06/15 04:28:13 danielk1977 Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -343,6 +343,7 @@ typedef struct IdList IdList;
typedef struct Index Index;
typedef struct KeyClass KeyClass;
typedef struct KeyInfo KeyInfo;
+typedef struct Module Module;
typedef struct NameContext NameContext;
typedef struct Parse Parse;
typedef struct Select Select;
@@ -567,6 +568,17 @@ struct FuncDef {
};
/*
+** Each SQLite module (virtual table definition) is defined by an
+** instance of the following structure, stored in the sqlite3.aModule
+** hash table.
+*/
+struct Module {
+ const sqlite3_module *pModule; /* Callback pointers */
+ const char *zName; /* Name passed to create_module() */
+ void *pAux; /* pAux passed to create_module() */
+};
+
+/*
** Possible values for FuncDef.flags
*/
#define SQLITE_FUNC_LIKE 0x01 /* Candidate for the LIKE optimization */
@@ -705,7 +717,7 @@ struct Table {
int addColOffset; /* Offset in CREATE TABLE statement to add a new column */
#endif
#ifndef SQLITE_OMIT_VIRTUALTABLE
- sqlite3_module *pModule; /* Pointer to the implementation of the module */
+ Module *pMod; /* Pointer to the implementation of the module */
sqlite3_vtab *pVtab; /* Pointer to the module instance */
u8 isVirtual; /* True if this is a virtual table */
int nModuleArg; /* Number of arguments to the module */
diff --git a/src/test8.c b/src/test8.c
index 774221635..ead66444f 100644
--- a/src/test8.c
+++ b/src/test8.c
@@ -13,7 +13,7 @@
** is not included in the SQLite library. It is used for automated
** testing of the SQLite library.
**
-** $Id: test8.c,v 1.19 2006/06/14 23:43:31 drh Exp $
+** $Id: test8.c,v 1.20 2006/06/15 04:28:13 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
@@ -622,7 +622,6 @@ int echoUpdate(sqlite3_vtab *tab, int nData, sqlite3_value **apData){
static sqlite3_module echoModule = {
0, /* iVersion */
"echo", /* zName */
- 0, /* pAux */
echoCreate,
echoConnect,
echoBestIndex,
@@ -661,9 +660,8 @@ static int register_echo_module(
return TCL_ERROR;
}
if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
- echoModule.pAux = interp;
#ifndef SQLITE_OMIT_VIRTUALTABLE
- sqlite3_create_module(db, "echo", &echoModule);
+ sqlite3_create_module(db, "echo", &echoModule, (void *)interp);
#endif
return TCL_OK;
}
diff --git a/src/test_tclvar.c b/src/test_tclvar.c
index fc474bb70..daa86e780 100644
--- a/src/test_tclvar.c
+++ b/src/test_tclvar.c
@@ -16,7 +16,7 @@
** The emphasis of this file is a virtual table that provides
** access to TCL variables.
**
-** $Id: test_tclvar.c,v 1.2 2006/06/14 06:58:16 danielk1977 Exp $
+** $Id: test_tclvar.c,v 1.3 2006/06/15 04:28:13 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
@@ -65,6 +65,7 @@ static int tclvarConnect(
** methods are identical. */
static int tclvarDisconnect(sqlite3_vtab *pVtab){
free(pVtab);
+ return SQLITE_OK;
}
/* The xDisconnect and xDestroy methods are also the same */
@@ -126,7 +127,6 @@ static int tclvarBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
static sqlite3_module tclvarModule = {
0, /* iVersion */
"tclvar", /* zName */
- 0, /* pAux */
tclvarConnect,
tclvarConnect,
tclvarBestIndex,
@@ -164,9 +164,8 @@ static int register_tclvar_module(
return TCL_ERROR;
}
if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
- tclvarModule.pAux = interp;
#ifndef SQLITE_OMIT_VIRTUALTABLE
- sqlite3_create_module(db, "tclvar", &tclvarModule);
+ sqlite3_create_module(db, "tclvar", &tclvarModule, (void *)interp);
#endif
return TCL_OK;
}
diff --git a/src/vtab.c b/src/vtab.c
index a7fd6a88e..727ee5117 100644
--- a/src/vtab.c
+++ b/src/vtab.c
@@ -11,7 +11,7 @@
*************************************************************************
** This file contains code used to help implement virtual tables.
**
-** $Id: vtab.c,v 1.11 2006/06/14 13:03:24 danielk1977 Exp $
+** $Id: vtab.c,v 1.12 2006/06/15 04:28:13 danielk1977 Exp $
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
#include "sqliteInt.h"
@@ -22,11 +22,22 @@
int sqlite3_create_module(
sqlite3 *db, /* Database in which module is registered */
const char *zName, /* Name assigned to this module */
- const sqlite3_module *pModule /* The definition of the module */
+ const sqlite3_module *pModule, /* The definition of the module */
+ void *pAux /* Context pointer for xCreate/xConnect */
){
- sqlite3HashInsert(&db->aModule, zName, strlen(zName), (void*)pModule);
- sqlite3ResetInternalSchema(db, 0);
- return SQLITE_OK;
+ int nName = strlen(zName);
+ Module *pMod = (Module *)sqliteMallocRaw(sizeof(Module) + nName + 1);
+ if( pMod ){
+ char *zCopy = (char *)(&pMod[1]);
+ strcpy(zCopy, zName);
+ pMod->zName = zCopy;
+ pMod->pModule = pModule;
+ pMod->pAux = pAux;
+ pMod = (Module *)sqlite3HashInsert(&db->aModule, zCopy, nName, (void*)pMod);
+ sqliteFree(pMod);
+ sqlite3ResetInternalSchema(db, 0);
+ }
+ return sqlite3ApiExit(db, SQLITE_OK);
}
/*
@@ -36,8 +47,8 @@ int sqlite3_create_module(
*/
void sqlite3VtabClear(Table *p){
if( p->pVtab ){
- assert( p->pModule!=0 );
- p->pModule->xDisconnect(p->pVtab);
+ assert( p->pMod && p->pMod->pModule );
+ p->pMod->pModule->xDisconnect(p->pVtab);
}
if( p->azModuleArg ){
int i;
@@ -116,6 +127,7 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
Table *pTab; /* The table being constructed */
sqlite3 *db; /* The database connection */
char *zModule; /* The module name of the table: USING modulename */
+ Module *pMod = 0;
addArgumentToVtab(pParse);
sqliteFree(pParse->zArg);
@@ -128,8 +140,8 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
db = pParse->db;
if( pTab->nModuleArg<1 ) return;
zModule = pTab->azModuleArg[0];
- pTab->pModule = (sqlite3_module*)sqlite3HashFind(&db->aModule,
- zModule, strlen(zModule));
+ pMod = (Module *)sqlite3HashFind(&db->aModule, zModule, strlen(zModule));
+ pTab->pMod = pMod;
/* If the CREATE VIRTUAL TABLE statement is being entered for the
** first time (in other words if the virtual table is actually being
@@ -142,7 +154,7 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
char *zWhere;
int iDb;
Vdbe *v;
- if( pTab->pModule==0 ){
+ if( !pMod ){
sqlite3ErrorMsg(pParse, "no such module: %s", zModule);
}
@@ -241,7 +253,7 @@ void sqlite3VtabArgExtend(Parse *pParse, Token *p){
static int vtabCallConstructor(
sqlite3 *db,
Table *pTab,
- sqlite3_module *pModule,
+ Module *pMod,
int (*xConstruct)(sqlite3*, void *, int, char **, sqlite3_vtab **),
char **pzErr
){
@@ -256,10 +268,10 @@ static int vtabCallConstructor(
db->pVTab = pTab;
rc = sqlite3SafetyOff(db);
assert( rc==SQLITE_OK );
- rc = xConstruct(db, pModule->pAux, nArg, azArg, &pTab->pVtab);
+ rc = xConstruct(db, pMod->pAux, nArg, azArg, &pTab->pVtab);
rc2 = sqlite3SafetyOn(db);
if( pTab->pVtab ){
- pTab->pVtab->pModule = pModule;
+ pTab->pVtab->pModule = pMod->pModule;
}
if( SQLITE_OK!=rc ){
@@ -284,7 +296,7 @@ static int vtabCallConstructor(
** This call is a no-op if table pTab is not a virtual table.
*/
int sqlite3VtabCallConnect(Parse *pParse, Table *pTab){
- sqlite3_module *pModule;
+ Module *pMod;
const char *zModule;
int rc = SQLITE_OK;
@@ -292,15 +304,16 @@ int sqlite3VtabCallConnect(Parse *pParse, Table *pTab){
return SQLITE_OK;
}
- pModule = pTab->pModule;
+ pMod = pTab->pMod;
zModule = pTab->azModuleArg[0];
- if( !pModule ){
+ if( !pMod ){
const char *zModule = pTab->azModuleArg[0];
sqlite3ErrorMsg(pParse, "no such module: %s", zModule);
rc = SQLITE_ERROR;
} else {
char *zErr = 0;
- rc = vtabCallConstructor(pParse->db,pTab,pModule,pModule->xConnect,&zErr);
+ sqlite3 *db = pParse->db;
+ rc = vtabCallConstructor(db, pTab, pMod, pMod->pModule->xConnect, &zErr);
if( rc!=SQLITE_OK ){
sqlite3ErrorMsg(pParse, "%s", zErr);
}
@@ -321,23 +334,23 @@ int sqlite3VtabCallConnect(Parse *pParse, Table *pTab){
int sqlite3VtabCallCreate(sqlite3 *db, int iDb, const char *zTab, char **pzErr){
int rc = SQLITE_OK;
Table *pTab;
- sqlite3_module *pModule;
+ Module *pMod;
const char *zModule;
pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
assert(pTab && pTab->isVirtual && !pTab->pVtab);
- pModule = pTab->pModule;
+ pMod = pTab->pMod;
zModule = pTab->azModuleArg[0];
/* If the module has been registered and includes a Create method,
** invoke it now. If the module has not been registered, return an
** error. Otherwise, do nothing.
*/
- if( !pModule ){
+ if( !pMod ){
*pzErr = sqlite3MPrintf("no such module: %s", zModule);
rc = SQLITE_ERROR;
}else{
- rc = vtabCallConstructor(db, pTab, pModule, pModule->xCreate, pzErr);
+ rc = vtabCallConstructor(db, pTab, pMod, pMod->pModule->xCreate, pzErr);
}
return rc;
@@ -401,15 +414,16 @@ int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab)
{
int rc = SQLITE_OK;
Table *pTab;
- sqlite3_module *pModule;
pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
- pModule = pTab->pModule;
assert(pTab);
if( pTab->pVtab ){
+ int (*xDestroy)(sqlite3_vtab *pVTab) = pTab->pMod->pModule->xDestroy;
rc = sqlite3SafetyOff(db);
assert( rc==SQLITE_OK );
- rc = pModule->xDestroy(pTab->pVtab);
+ if( xDestroy ){
+ rc = xDestroy(pTab->pVtab);
+ }
sqlite3SafetyOn(db);
if( rc==SQLITE_OK ){
pTab->pVtab = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-20 21:48:31 +0000